Error: Device 768 (vbd) could not be connected. Hotplug scripts not working

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You may get an error like this in xen vps.

When booting from solusvm it boots to paused state and then exits.

From backend :
[root@test ~]# xm create /home/xen/vm699/vm699.cfg
Using config file "/home/xen/vm699/vm699.cfg".
Error: Device 768 (vbd) could not be connected. Hotplug scripts not working.

Check the hotplug error log :
[root@test ~]# tail /var/log/xen/xen-hotplug.log
stat: cannot stat `/dev/xensan/vm699_img': No such file or directory
Nothing to flush.
[root@test ~]#

If you are configured the vps images in lvm, activating the corresponding logical volumes will

solve this problem.

For example :
lvchange -ay /dev/xensan/vm699_img